import java.util.LinkedList;
import java.util.List;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: LIUYANJIAO
 * Date: 2024-10-09
 * Time: 22:38
 */
public class Main {
    public static void main(String[] args) {
        List<Integer> a=new LinkedList<>();


    }
}